Rohde & Schwarz (Rohde & Schwarz) is a leading international manufacturer of test and measurement equipment, founded in 1933, headquartered in Munich, Germany, mainly produces test and measurement, radio and television, secure communications, radio monitoring and directional field products, including wireless The main products include wireless communication test systems, broadcast transmission systems, signal and spectrum analyzers, voltmeters and power meters, TV transmitters, direction finders, antennas and other products.